Sony A7R MKIV and Nauticam NA-A7R IV Field Review

Phil Rudin · Issue 111, Nov/Dec 2019 · pp. 34–42

Products mentioned: Sony Alpha A7R IV, Nauticam NA-A7RIV Housing, Sony FE 12-24mm F/4 lens, Sony FE 90mm F/2.8 macro lens, Inon Z-330 strobes, Canon 8-15mm fisheye zoom lens, Sony A7R III, Olympus E-M1II, Olympus E-M5III

Sony has recently introduced the Alpha A7R MKIV 61MP full frame mirrorless camera body. This is a fourth generation of Sony camera which started with the release of the Sony A7, A7r and A7s in early 2013. These were the first mirrorless interchangeable lens cameras to feature a full-frame (35MM) sensor in a mirrorless camera body the size of the current Olympus E-M1II & E-M5III mirrorless cameras. The A7R IV is a refinement of the highly successful A7R III introduced in Oct. 2017 and reviewed by me in uwpmag.com issues 102 and 103 using Acquapazza and Ikelite housings. At this time the A7R IV is the most technically advanced high resolution full frame camera on the planet. In my 2017 review of the A7R III I said that Sony had made it quite clear that they intend to surpass Canon and Nikon in the Pro/Prosumer market by focusing heavily on full-frame mirrorless cameras and high quality len…